If Pioneer has its way, basic window-shopping might soon freak you out thanks to its latest see-through projection prototype. The tech features 80 percent transmittance levels -- supposedly much higher than transparent IPS LCD tech -- meaning bright images can be beamed onto the panels without blocking the view of objects behind. Even blacks from the rear-mounted projectors are see-through, and Pioneer envisions the tech being used one day for digital signage and improved vehicle HUDs. We're all for the latter, but the signage demo in the video after the break kind of makes us feel like ads in our head aren't far behind.